Synthesis of New Tetracyclic And Hexacyclic Non-linear Phenothiazine Derivatives

Ayuk, E.L. and NJOKUNWOGBU, A.N and ILO, S.U. and Engwa, G.A. and ONI, T.O. and OBIUDU, I.K. (2015) Synthesis of New Tetracyclic And Hexacyclic Non-linear Phenothiazine Derivatives. International Journal of Scientific & Engineering Research, 6 (4). pp. 1988-1995. ISSN ISSN 2229-5518

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The synthesis of 6-chloro-11-azabenzo[a]phenothiazine-5-one is described. This was achieved under anhydrous condition by alkaline catalyzed reaction of 2-aminopyridine-3-thiol and 2, 3-dichloro-1,4naphthoquinone. Also described in this work is the synthesis of 6,15diazabenzo[a][1,4]benzothiazino[3,2-c]phenothiazine which was achieved by the condensation of 6chloro-11-azabenzo[a]phenothiazine-5-one with a second molecule of 2-aminopyridine-3-thiol in an alkaline medium. The ease of oxidation of these sodium dithionite (Na2S2O3) reduced compounds as well as the oxidation of these new compounds with hydrogen peroxide (H2O2) to sulphoxide make them suitable to be considered as a vat dyes and antioxidants in the textile and petroleum industries respectively.

Item Type: Article
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Natural and Applied Sciences
Depositing User: Mr Chinedu Anthony
Date Deposited: 18 May 2018 13:42
Last Modified: 18 May 2018 13:42

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